Best heat-tolerant hostas
I work at a golf course, and one of the largest landscaping beds is currently lined with Und. alba. all along a sidewalk, in a bed built of boulders, and receiving little to no water from course irrigation. They do 'okay'. They are artless, I know. In additon, the ladies group that planted this bed planted them all in a line that really clashes with elementary design principles of flow. It will likely fall to me to help put this bed in a better way, and I was tossing around the idea of replacing all or part of the Undu. albas. with another hosta variety or two or three, and re-arranging them.
Are there varieties that tolerate heat and sun betetr than pothers? I know most hostas will tolerate sun. But it could likely get pretty hot, too. This year has been unusually cool and wet. They might not otherwise get irrigation water, and not likely to get TLC watering, either.
What think you?